Load Carrier Device with Adjustable Elastic Weight Distribution
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Solution Overview
Problem
Conventional load carrier devices often cause excessive force on the shoulders and back, leading to discomfort and potential injury, as they do not distribute weight optimally, and may restrict movement due to the distribution of weight being fixed between shoulders and waist.
Innovation Solution
A load carrier device featuring a waist belt with an adjustable elastic connection that supports a vertically rigid element, allowing the user to redistribute the weight between the shoulders and waist by adjusting tension in the elastic connection, thereby optimizing weight distribution and enabling greater freedom of movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the weight load is shared by the shoulders and the waist using a fixed distribution system, then the load is supported, but the distribution of weight is not optimal or comfortable and restricts movement
Solution Approach 1:
The patent applies the dynamics principle by replacing the fixed weight distribution system with an adjustable elastic connection that allows dynamic redistribution of weight between shoulders and waist. The elastic connection enables the user to shift weight distribution according to comfort needs and movement requirements, transforming a static system into a dynamic one that adapts to changing conditions during load carrying.
2Ease of operation
If a belt or band is added to support the load on the waist, then excessive force on shoulders and back is reduced, but the optimal distribution of weight cannot be adjusted when body fatigue changes
Solution Approach 1:
The adjustable elastic connection implements dynamics by allowing real-time adjustment of weight distribution between waist and shoulders. When body fatigue changes, the user can modify the elastic connection tension to redistribute weight optimally, transforming a static belt support system into a dynamic adjustable system that adapts to physiological changes during use.
Solution Approach 2:
The patent applies parameter changes by modifying the tension and elasticity parameters of the elastic connection to achieve different weight distribution states. By changing the physical parameters of the elastic connection (tension, stretch), the system can adapt weight distribution to match changing user needs and body fatigue levels.
3Ease of operation
If a load is connected to both shoulder straps and a waist belt, then the load is supported, but movement of the body is restricted
Solution Approach 1:
The patent applies flexible shells and thin films by using an elastic connection instead of rigid connectors between the waist belt and the load. This elastic element provides flexibility that allows natural body movements while maintaining load support, replacing rigid mechanical connections with a flexible elastic structure that accommodates movement freedom.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device allows for comfortable and effective load carrying by dynamically shifting weight between the shoulders and waist, reducing strain and fatigue, and maintaining mobility while carrying heavy loads.
Implementation Method 1
an adjustable elastic connection attached to the belt for supporting a lower end of the element of substantial vertical rigidity
Data Source
AI summary
A load carrier device for enabling a user to carry a load includes a belt for fastening about a waist of the user and an element of substantial vertical rigidity configured to exert a lifting force on the load when the load is attached to shoulder straps on shoulders of the user. The device further includes an adjustable elastic connection attached to the belt for supporting a lower end of the element of substantial vertical rigidity such that adjusting the adjustable elastic connection changes a distribution of a weight of the load between the shoulders and the waist of the user.